PICOSOFT Controller Book by Allen-Bradley Rockwell Automation

Pico™ Controller
Bulletin 1760
Getting Results

Important User Information Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application,
Installation and Maintenance of Solid State Controls (Publication SGI-1.1
available from your local Rockwell Automation sales office or online at
http://www.ab.com/manuals/gi) describes some important differences
between solid state equipment and hard-wired electromechanical devices.
Because of this difference, and also because of the wide variety of uses for
solid state equipment, all persons responsible for applying this equipment
must satisfy themselves that each intended application of this equipment is
acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for
indirect or consequential damages resulting from the use or application of
this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with
any particular installation, Rockwell Automation, Inc. cannot assume
responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to
use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without
written permission of Rockwell Automation, Inc. is prohibited.
Throughout this manual, when necessary we use notes to make you aware of
safety considerations.
WARNING
Identifies information about practices or circumstances
that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property
damage, or economic loss.
IMPORTANT
Identifies information that is critical for successful
application and understanding of the product.
ATTENTION
Identifies information about practices or circumstances
that can lead to personal injury or death, property
damage, or economic loss. Attentions help you:
• identify a hazard
• avoid a hazard
• recognize the consequence
SHOCK HAZARD Labels may be located on or inside the equipment (e.g.,
drive or motor) to alert people that dangerous voltage may
be present.
BURN HAZARD Labels may be located on or inside the equipment (e.g.,
drive or motor) to alert people that surfaces may be
dangerous temperatures.

i Publication 1760-GR001C-EN-P - April 2005
Table of Contents
Preface Who Should Use this Manual. . . . . . . . . . . . . . . . . . . Preface-i
Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . Preface-ii
Common Techniques Used in this Manual . . . . . . . . . Preface-ii
Rockwell Automation Support . . . . . . . . . . . . . . . . . Preface-iii
Chapter 1
Pico Controller Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Simply Pico. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Mount Pico. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Connect Pico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Pico Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Chapter 2
Drawing a Circuit with Pico Operation of Pico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Set the Menu Language . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Set the Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Choose Pico Operating Mode . . . . . . . . . . . . . . . . . . . . . . 2-4
Pico Circuit Diagram Elements. . . . . . . . . . . . . . . . . . . . . . 2-5
Example: Creating a Circuit Diagram . . . . . . . . . . . . . . . . . 2-9
Function Relay Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Example: Use a Function Relay . . . . . . . . . . . . . . . . . . . . . 2-20
Basic Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Chapter 3
Pico Interface Socket
Appendix A
Specifications Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Product Selection Table. . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Index

Publication 1760-GR001C-EN-P - April 2005
Table of Contents ii

i Publication 1760-GR001C-EN-P - April 2005
Preface
Read this preface to familiarize yourself with the rest of the manual. It
provides information concerning:
• who should use this manual
• the purpose of this manual
• related documentation
• conventions used in this manual
• Rockwell Automation support
Who Should Use this
Manual
Use this manual if you are responsible for designing, installing,
programming, or troubleshooting control systems that use Pico
controllers.
You should have a basic understanding of electrical circuitry and
familiarity with relay logic. If you do not, obtain the proper training
before using this product.

Preface ii
Purpose of This Manual This manual provides a basic overview of Pico and an introduction to
Pico programming. For a more detailed description of how to install
and use your Pico Controller, refer to publication 1760-UM001, Pico
Controller User Manual.
Related Documentation
The following documents contain additional information concerning
Rockwell Automation products. To obtain a copy, contact your local
Rockwell Automation office or distributor.
Common Techniques Used
in this Manual
The following conventions are used throughout this manual:
• Bulleted lists such as this one provide information, not
procedural steps.
• Numbered lists provide sequential steps or hierarchical
information.
• Italic type is used for emphasis.
For Read this Document Document Number
A more detailed description of how to install and use your Pico
controller.
Pico Controller User Manual 1760-UM001
In-depth information on grounding and wiring Allen-Bradley
programmable controllers
Allen-Bradley Programmable
Controller Grounding and Wiring
Guidelines
1770-4.1
A description of important differences between solid-state
programmable controller products and hard-wired electromechanical
devices
Application Considerations for
Solid-State Controls
SGI-1.1
An article on wire sizes and types for grounding electrical equipment National Electrical Code - Published by the National Fire
Protection Association of Boston, MA.
A complete listing of current documentation, including ordering
instructions. Also indicates whether the documents are available on
CD-ROM or in multi-languages.
Allen-Bradley Publication Index SD499
A glossary of industrial automation terms and abbreviations Allen-Bradley Industrial Automation
Glossary
AG-7.1

Preface iii
Rockwell Automation
Support
Rockwell Automation offers support services worldwide, with over 75
Sales/Support Offices, 512 authorized Distributors and 260 authorized
Systems Integrators located throughout the United States alone, plus
Rockwell Automation representatives in every major country in the
world.
Local Product Support
Contact your local Rockwell Automation representative for:
• sales and order support
• product technical training
• warranty support
• support service agreements
Technical Product Assistance
If you need to contact Rockwell Automation for technical assistance,
please review the Troubleshooting chapter in the Pico Controller User
Manual first. Then call your local Rockwell Automation representative.
You can also contact Rockwell Automation Technical Support. To
reach our Technical Support, go to the following website to find the
support site for your region.
• http://support.automation.rockwell.com/contactinformation/
Your Questions or Comments on this Manual
If you find a problem with this manual, or you have any suggestions
for how this manual could be made more useful to you, please
contact us at the address below:
Rockwell Automation
Control and Information Group
Technical Communication, Dept. A602V
P.O. Box 2086
Milwaukee, WI 53201-2086
or visit our internet page at:
http://www.ab.com/pico or http://www.rockwellautomation.com

Preface iv

1 Publication 1760-GR001C-EN-P - April 2005
Chapter 1
Pico Controller
Safety Information
Simply Pico Clever Switching and Controlling
Pico is a compact, user-friendly and low-cost controller for simple
control applications. Applications range from building and domestic
automation to machine and plant control. Pico has built-in
user-friendly operating elements and an LCD display.
Connect Pico and draw a circuit diagram on the display by pressing
the buttons on the device. Pico works with make contacts, break
contacts, and relays.
Enter a circuit diagram in Pico just like it is sketched on paper. Pico
has basic and advanced functions for relays, time switches and
contactors, among other functions. Make changes to the circuit by
pressing the buttons on the device. Time consuming rewiring is not
necessary.
ATTENTION
Electrical Shock Hazard
The electrical installation and commissioning work
must only be carried out by suitably qualified
personnel.
Do not work on the device when the power is turned
on.
Observe the relevant safety regulations:
• Turn off the power
• Make sure that the device cannot be powered on
again inadvertently
• Check to make sure that no dangerous voltages
are present before working on the device

1-2 Pico Controller
Applications Everywhere
• Building and domestic automation, controllers for lighting,
doors, window shutters
• Control ventilators, rotating doors, greenhouses, exterior
lighting, window controllers, shop display lighting
• Create controllers for temperature, ventilation and brightness
levels
• Control machines and plant, presses, conveyor belts, oscillating
conveyors, sorters, pumps
Overview of Pico
Item Description
1 Incoming Power
2 Inputs
3 Power/Run LED
4 Keypad
5 Socket for memory module or PC interface cable
6 Outputs
7 LCD display
8 Write-On Surface
Esc
Ok
Del
Alt
Esc
Ok
Del
Alt
7
1
2
3
4
5
6
3
5
5
8
8
7
8

Pico Controller 1-3
Mount Pico Mount on DIN Rail
1. Hook Pico to the top edge of the DIN rail
and rotate into place while pressing down
slightly as shown by the arrow.
2. Pico will clip into place and is secured by
the built-in spring mechanism.
Mount on a Mounting Plate
Pico can be screwed to a mounting plate with the three or four feet
which are included.
1
2
Click

1-4 Pico Controller
Connect Pico Pico Inputs1760-L12BBB-xx, 1760-L12BWB-xx and
1760-L12DWD-xx
Pico Inputs 1760-L12AWA-xx and 1760-L12NWA-xx
+10 V
10 V
5 V
0 V
BWB: +24 V
+.. V
DWD: +12 V
~
0 5 10
0 VBWB:
Ue = 24 V
(20.4 - 28.8 V)
Ie = 80 mA
DWD:
Ue = 12 V
(10.2 - 15.6 V)
Ie = 140 mA
BWB: +24 V
DWD: +12 V
0 V
l7, l8
> 1 A
l1 I2 I3 I4 I5 I6 I7 I8
1 ≥ 15 V
0 ≤ 5 V
28.8 V
l = 3.3 mA/24 V
I7, I8 = 2.2 mA/24 V 1 ≥ 8 V
0 ≤ 4 V
l = 3.3 mA/12 V
I7, I8 = 1.1 mA/12 V
15.6 V
5 - 7 lb-in
3.5 mm
COM
BWB DWD
L1
5-7 lb-in.
3.5 mm
L1
L2
>1A
l1 I2 I3 I4 I5 I6 I7 I8
Ue = 120/240 V
50/60 Hz
(90 to 264V)
le = 40 mA 120V
20 mA 240V
l1–I6 = 0.5 mA 240 V
l1–I6 = 0.25 mA 120 V
I7, I8
l = 6 mA 240 V
l = 4 mA 120V
1 ≥ 79V
0 ≤ 40V
264V
L2

Pico Controller 1-5
Pico Outputs 1760-L12AWA-xx, 1760-L12BWB-xx,
1760-L12DWD-xx, 1760-L12BBB-xx and 1760-L12NWA-xx
Pico Inputs 1760-L18BWB-EX and 1760-L18BWB-EXND
0 V , N
8 A / B 16
L1, L2, L3 (120/240 V )
+ 24 V
25.000
R L
24 V 8 A
120 V 8 A
240 V 8 A
2 A
2 A
2 A
1000 W
10 x 58 W
1 2 1 2 1 2 1 2
10 000 000
Q1 Q2 Q3 Q4
+10 V
10 V
5 V
0 V
+24 V
0 5 10
0 V
5–7 lb-in
3.5 mm
Ue = 24 V
(20.4–28.8 V)
Ie = 140 mA
+24 V
0 V
l7, I8
> 1 A
l1 I2 I3 I4 I5 I6 I7 I8
1 ≥ 15 V
0 ≤ 5 V
24 V
I7, I8 = 2.2 mA
I9 I10 I11 I12
28.8 V
24 V
I1–I6, I9–I12 = 3.3 mA
24 V Input 24 V
z
COM
G '1D %
-
B

1-6 Pico Controller
Pico Inputs 1760-L18AWA-xx and 1760-L18NWA-xx
Pico Outputs 1760-L18xxx
Pico Inputs 1760-L20xxx
L1
5-7 lb-in.
3.5 mm
L1
L2
> 1 A
l1 I2 I3 I4 I5 I6 I7 I8 I9 I10 I11 I12
Ue = 120/240 V
50/60 Hz
(85–264 V)
100/240 V Input 100/240 V
le = 70 mA 120 V
35 mA 240 V
l1–I6, I9 –I12 = 0.5 mA 240 V
l1–I6, I9 –I12 = 0.25 mA 120 V
I7, I8
l = 6 mA 240 V
l = 4 mA 120 V
1 > 79 V
0 < 40 V
264 V
L2
0 V , N
8 A / B 16
L1, L2, L3 (120/240 V )
+ 24 V
< 25.000
R
24 V 8A
120 V 8 A
240 V 8A
2 A
2 A
2 A
1000 W
10 x 58 W
1 2 2 2 2 2 21 1 1 1 1
< 10 000 000
Q6Q5Q4Q3Q2Q1
L011
L012
0 V l1 I2 I7+...V
DC : +24 V
DA : +12 V
F1

Pico Controller 1-7
Pico Outputs 1760-L20xxx
Pico Inputs 1760-IB12XOB8
(20.4 – 28.8 V H)
+ 24 V H
R
5 W/24 V
0.5 A
0 V H
+24 V 0 V Q1 Q2 Q3 Q4 Q5 Q6 Q7
f 2.5 A
F 10 A
24 V H 0.5 A
Q8Q Q
5–7 lb-in
3.5 mm
Ue = 24 V
(20.4–28.8 V)
Ie = 140 mA
+24 V
0 V
> 1 A
1 ≥ 15 V
0 ≤ 5 V
R10R9R8R7R6R5R4R3R2R1NC NC R11 R12 +24V
28.8 V R1–R12 = 3.3 mA; 24 V
Input 24 V 24 V
COM

1-8 Pico Controller
Pico Outputs 1760-IB12XOB8
Pico Inputs 1760-IA12XOW6I and 1760-IB12XOW6I
S1 S2 S3 S4 S5 S6 S7 S8
2.5A
10A
R
+24V dc COM
+ 24V dc
24V 0.5A 0.5A
(20.4-28.8V dc )
5W/24V
≤
0V
0 V , N
< 8 A / B 16
L1, L2, L3 (120/240 V)
+ 24 V
25.000
R
24 V 8 A
120 V 8 A
240 V 8 A
2 A
2 A
2 A
1000 W
10 x 58 W
1 2 2 2 2 2 21 1 1 1 1
10 000 000
S6S5S4S3S2S1

Pico Controller 1-9
Pico Outputs 1760-IA12XOW6I and 1760-IB12XOW6I
Pico Outputs 1760-OW8
0 V , N
< 8 A / B 16
L1, L2, L3 (120/240 V)
+ 24 V
25.000
R
24 V 8 A
120 V 8 A
240 V 8 A
2 A
2 A
2 A
1000 W
10 x 58 W
1 2 2 2 2 2 21 1 1 1 1
10 000 000
S6S5S4S3S2S1

1-10 Pico Controller
Pico Operating Principle Pico Operating Buttons
Button Function
Del Delete object in the circuit diagram
Alt Special functions in the circuit diagram
Cursor
Buttons
Move cursor
Select menu item
Choose contact numbers, values, times, etc.
Ok Next menu level, store your entry
Esc Previous menu level, cancel your entry
Esc Ok
Del Alt

Pico Controller 1-11
Move Through Menus to Choose Values
12-Point Status Display
Press To
Show system menu (press both keys at the same time).
• Go to next menu level.
• Select menu item.
• Store your entry.
Cancel your entry since the last Ok.
• Change menu item.
• Change value.
• Change position.
Del Altand
Ok
Esc
I12345678
MO
12:50
Q1234 RUN
Inputs
Outputs
Weekday
Time
RUN/STOP mode
On/ Off

18-Point and 20-Point Status Display
Menu Display
1...5..8....
RE I P
MO 02:00 ST
.2..5..8 RUN
Inputs
Retention Enabled
Day, Time
Outputs
Debounce Enabled/P-Buttons Enabled
Start-up Mode
Mode
Inputs 1, 5, 8 ON
Outputs 2, 5, 8 ON
PROGRAM...
RUN...
PARAMETER
SET CLOCK..
RUN...
PARAMETER
SET CLOCK..
PASSWORD..Current choice
blinks in the Pico
menu
Main menu with and without password enabled

Cursor Display
Circuit Diagram Menu
Each rung can hold four instructions, three input instructions
(contacts) and one output instruction (coil or relay). Rungs are
connected together through branches at the three positions between
instructions. All programming of Pico can be done using the display
and keypad.
WINTER TIME
DAY : MO
TIME : 01 25
WINTER TIME
DAY : MO
TIME : 01:25
There are two different cursor types:
Full block navigation is shown as a flashing
block:
• Move cursor with the left/right arrows
• When in circuit diagram, also use
up/down arrows
Parameter change cursor flashes the selected
parameter:
• Change position with left/right arrows
• Change values with up/down arrows
Flashing values/menus are highlighted in grey
in this manual.
I1 -I2 -T1 -{Q1
I2 - 1
Input
Contacts
Output
Coil Field
Circuit
Connections/Rungs
Branch Connections

Circuit Diagram Symbols
P
I
Q
M
T
C
A
:
R
S
I1 -M2 -T1 -{Q1
I2 -Q1
D
I3-M2-T2----{Q2
Cursor button as input
Contact for input
Contact for output
Contact for internal marker bits
Contact for timer relay
Contact for counter relay
Contact for real time clock switch
Analog comparator contact
Contact for text display (1)
Contact for jump (1)
Expansion Inputs (1)
Contact for internal marker relay or
Expansion Output (1)
Coil Field
1st circuit connection
2nd circuit connection
3rd circuit connection
41st circuit connection
Last circuit connection
…
…
(1) For 1760-L18xxx only

Menu Structure Main Menu Without Optional Password Protection
PROGRAM...
STOP RUN å
PARAMETER
INFO...
SET CLOCK
PROGRAM
DELETE PROG
CARD ...
Circuit Diagram
Parameters
PROGRAM
CARD ...
DELETE PROG
PROGRAM
DELETE ?
DEVICE->CARD
CARD->DEVICE
DELETE CARD
REPLACE ?
DEVICE->CARD
DELETE CARD
REPLACE ?
DEVICE->CARD
CARD->DEVICE
DELETE ?
PROGRAM...
PARAMETER
RUN
STOP
PROGRAM...
PROGRAM...
RUN
PARAMETER
SUMMER TIME
DC TC LCD
OS: 1.00.027
CRC: 02752
DELETE PROG
CARD ...
CARD->DEVICE
DELETE CARD
PARAMETER
SET CLOCK
INFO...
SET CLOCK
PROGRAM...
RUN
PARAMETER
INFO...
SET CLOCK
INFO...
SET CLOCK
INFO...
SET CLOCK
STOP RUN
STOP RUN
T1 X
S1 10.000
S2 +0
+S
T:
T1 X
T2 Ü
C1 N
O1
M:S
+
+
+
+
S
HH:MM --:--
DD.MM
YEAR ----
--.--
HH:MM 14:23
DD.MM
YEAR 2004
17.03
RUN
STOP
STOP: Circuit diagram menu
RUN: Power flow display
Parameter
Display
Parameter Display
Display for
Setting Clock
Information Display of Device

Main Menu Setting Summer Time
SET CLOCK
NONE å
RULE...
EU
GB
US
SUMMER TIME
SUMMER START
SUMMER END
PROGRAM...
RUN
PARAMETER
INFO...
SET CLOCK
SET CLOCK
NONE
RULE...
EU
GB
US
SUMMER TIME
SUMMER START
SUMMER END
SET CLOCK
NONE
RULE...
EU
GB
US
SUMMER TIME
SUMMER START
SUMMER END
SET CLOCK
NONE
RULE...
EU
GB
US
SUMMER TIME
DD.MM:00.00
AM --
HH:MM --
HH.MM:00:00
DIFF: 0:00
--
DD.MM:00.00
AM --
HH:MM --
HH.MM:00:00
DIFF: 0:00
--

Main Menu with Password Protection
PASSWORD...
RUN
PARAMETER
Password DELETE ALL
PASSWORD...
RUN
INFO...
SET CLOCK
Main Menu
Unlock
Password Entry
Four Wrong
Entries
Correct Entry
Status Display
TIP If you do not know the password, you can delete the
old password, but the circuit diagram and data will
also be deleted. To delete the password, press Ok to
DELETE ALL after entering four incorrect passwords.
(Pressing Esc retains the circuit diagram and data.
You can then make another four attempts to enter
the password.)

System Menu
sECURITY...
SYSTEM... RANGE...
LANGUAGE ...
CONFIGURATOR
CONFIGURATOR
Password
RANGE...
Password
ENTER PASSW:
XXXX
ENTER PASSW:
XXXXCHANGE PW
ACTIVATE PW
SECURITY...
LANGUAGE...
CHANGE PW
P ON
STOP MODE
DEBOUNCE OFF
DEBOUNCE ON
DEBOUNCE OFF
P ON
STOP MODE
DEBOUNCE OFF
P ON
DEBOUNCE OFF
STOP MODE
P ON
P OFF
MODE: STOP
MODE: RUN
RETENTION ON
RETENTION OFF
ACTIVATE PW
CHANGE PW
ACTIVATE PW
SYSTEM...
CONFIGURATOR
SECURITY...
LANGUAGE...
SYSTEM...
CONFIGURATOR
SECURITY...
LANGUAGE...
SYSTEM...
DEBOUNCE OFF
P ON
STOP MODE
RETENTION ON
(2) (2)
(2)
PROGRAM å
PARAMETER
CLOCK
OPRTNG MODE
INTERFACE
DELETE FUNCT
PROGRAM å
PARAMETER å
CLOCK å
OPRTNG MODE å
INTERFACE å
DELETE FUNCT å
ENGLISH
DEUTSCH
FRANCAIS
ESPANOL
ITALIANO
PORTUGUES
NEDERLANDS
SVENSKA
POLSKI
TURKCE
CESKY
MAGYAR
System
Set Password
Change Password
Password Entry
(1) Only for Pico 1760-L18xxx
(2) Only for Pico 1760-L12BWB-xx,
-L12DWD and -L18xxx.

Chapter 2
Drawing a Circuit with Pico
Operation of Pico Buttons for Drawing Circuit Diagrams
Button Function
Delete branch, contact, relay, or empty rung in the
circuit diagram
• Toggle between break and make contact
• Connect contacts and relays
• Add circuit connections
Up/down arrows:
• Change value
• Move cursor up and down
Left/right arrows:
• Move cursor to left and right
• Change between parameters
• Go to previous menu level
• Undo settings from previous Ok
• Exit current display
• Go to next menu level
• Change, add contact/relay
• Save setting
Del
Alt
Esc
Ok

2-2 Drawing a Circuit with Pico
Set the Menu Language Power Up Pico for the First Time
When you power-up Pico for the first time, you are asked to select the
menu language.
Use the up and down cursor buttons to select a language. Definitions
of the language abbreviations are shown below.
Press Ok to confirm your choice or press Esc to exit the menu. The
unit then switches to the status display. You can also change the
language setting at a later date.
If you do not set the language, Pico displays this menu and waits for
you to select a language every time the unit is powered up.
TIP A brief current surge is produced when powering on
the unit for the first time. Do not switch the unit
using reed contacts, since these may burn or melt.
Language LCD display Abbreviaton
English ENGLISH GB
German DEUTSCH D
French FRANCAIS F
Spanish ESPANOL E
Italian ITALIANO I
Portuguese PORTUGUES –
Dutch NEDERLANDS –
Swedish SVENSKA –
Polish POLSKI –
Turkish TURKCE –
Czexh CESKY –
Hungarian MAGYAR –
ENGLISH
DEUTSCH
FRANCAIS
ESPANOL
ITALIANO
PORTUGUES
NEDERLANDS
SVENSKA
POLSKI
TURKCE
CESKY
MAGYAR

Drawing a Circuit with Pico 2-3
Set the Time Controllers with the “-NC” designation do not have real time clocks.
Set the Real Time Clock
Set Week Day and Time
I 1 2 3 4 5 6 7 8
MO
14:15
Q1234 STOP
1 ...5 ..8 ....
RE I P
MO 02:00 ST
.2 ..5 ..8 RUN
PROGRAM ...
RUN
PARAMETER
PROGRAM ...
RUN
PARAMETER
SET CLOCK
SET CLOCK
SUMMER TIME
Ok
Ok
12-I/O Pico 18-I/O Pico
or
SET CLOCK
SUMMER TIME
WINTER TIME
DAY : MO
TIME : 14:15
Ok
Ok
Esc
Esc
left/right arrows: Move cursor
up/down arrows:
Change values
Save setting
Keep previous value
Exit Menu

Winter/Summer Time (Daylight Savings Time)
Choose Pico Operating
Mode
The two Pico operating modes are RUN and STOP.
• RUN: Pico processes the circuit diagram.
• STOP: Create and modify the circuit diagram.
The alternating RUN/STOP menu shows either
RUN or STOP as follows:
• STOP mode active: RUN is shown
• RUN mode active: STOP is shown
Selectable Start-up Behavior
It is possible to select the operating mode to be activated when Pico is
powered up. You can choose start-up in “RUN” mode or in “STOP”
mode through the System Menu.
SET CLOCK
SUMMER TIME
Ok
Esc
Display: SUMMER TIME
Winter time is set
Display: WINTER TIME
Summer time is set
Toggle Settings
Exit Menu
PROGRAM ...
RUN
PARAMETER
SET CLOCK ..

Pico Circuit Diagram
Elements
Contacts
Contacts are used to modify the flow of current in the circuit diagram.
Contacts in the circuit diagram are either make or break contacts.
Make contacts are open when off (de-energized) and closed when on.
Break contacts are closed when off and open when on.
Pico works with different contacts, which can be used in any order in
the contact fields of the circuit diagram.
Contact Pico Representation
Make contact; Open when off I, Q, M, A, C, T, P, D, S, :, R
Break contact; Closed when off I, Q, M, A, C, T, P, D, S, R
Contact Type Make
Contact
Break
Contact
1760-L12xxx 1760-L18xxx
1760-L20xxx
Controller Inputs I I I1 to I8 I1 to I12
0 signal I13 I13
Expansion Status – I14(3)
Short-circuit/overload I16 I15 to I16
Soft Inputs - Keypad P P P1 to P4 P1 to P4
Controller Outputs Q Q Q1 to Q4 Q1 to Q8
Internal Marker Bits M M M1 to M16 M1 to M16
Internal Marker Bits N N N1 to N16 N1 to N16
Counters C C C1 to C16 C1 to C16
Timers T T T1 to T16 T1 to T16
Real Time Clock(1)
Analog Setpoint
Compare(2)
A A A1 to A16 A1 to A16
Text Display D D D1 to D16 D1 to D16
Expansion Outputs or
Internal Marker Bits
S S S1 to S8 S1 to S8
Jump to Label : – :1 to :8 :1 to :8
Expansion Inputs R R – R1 to R12
Expansion Overload
Detection
R R – R15 and R16(3)
1 to 8 1 to 8

Relays
Pico has thirteen different types of relay for use in a circuit diagram.
The switching behavior of these relays is set using coil functions and
parameters. The coil functions and parameters are listed with the
description of each function relay type.
Operating Hours Counter O O O1 to O4 O1 to O4
Year Time Switch Y Y Y1 to Y8 Y1 to Y8
Master Reset Z Z Z1 to Z3 Z1 to Z3
(1) Not available on “-NC” models.
(2) This applies only to the 1760-LxxBWB-xx and 1760-L12DWD.
(3) This applies only to 1760-L18xxx-EX models. R15 and R16 are used for expansion overload detection for the
transistor expansion module, 1760-IB12XOB8, as described on page 9-4.
Contact Type Make
Contact
Break
Contact
1760-L12xxx 1760-L18xxx
1760-L20xxx
Relay type Pico Symbol 1760-L12xxx 1760-L18xxx
1760-L20xxx
Coil
Function
Parameter
Controller Outputs Q Q1 to Q8 Q1 to Q8 X –
Internal Marker Bits M M1 to M16 M1 to M16 X –
Internal Marker Bits N N1 to N16 N1 to N16 X –
Counters C C1 to C16 C1 to C16 X X
Timers T T1 to T16 T1 to T16 X X
Real Time Clock(1) – X
Operating Hours Counters O O1 to O4 O1 to O4 X X
Analog Setpoint Compare(2) A A1 to A16 A1 to A16 – X
Text Display D D1 to D16 D1 to D16 X X
Jump to Label : :1 to :8 :1 to :8 X –
Expansion Outputs or Internal Marker
Bits
S S1 to S8 (as marker) S1 to S8 X –
Year Time Switch Y Y1 to Y8 Y1 to Y8 – X
Master Reset Z Z1 to Z3 Z1 to Z3 X –
(1) Not available on “-NC” models.
(2) This applies only to the 1760-LxxBWB-xx and 1760-L12DWD.
1 to 8 1 to 8

The options for setting output and marker relays are listed with the
description of each coil function.
Retentive Actual Values
With Pico 1760-L12BWB-xx, 1760-L12DWD, and 1760-L18xxx, it is
possible to save the actual values of markers, timers and counters in
the event of a power failure. The quantities and values that may be
retained are found in the following table.
For further information see the Pico Controller User Manual,
publication number 1760-UM001B-EN-P.
Retentive Relays
Relay Type Pico
Symbol
1760-L12BWB-xx
1760-L12DWD
1760-L18xxx
Internal Marker Bits M 4 (M13 to M16) 4 (M13 to M16)
Counters C 1 (C8) 4 (C5, C6, C7, C8)
Timers T 1 (T8) 2 (T7, T8)
Text Display D – 8 (D1 to D8)

{
S,R
Basic Output Energize
Maintained/Flip-Flop Output
Latching Output
Instruction
Output
Instruction
Output
Reset Instruction
Output
Set Instruction
On
On
On
On
On
On
On

Example: Creating a Circuit
Diagram
Interconnect Contacts and Relays
Draw Circuit in Circuit Diagram Menu
Insert Contact “I1”
I1-I2----{Q1
S1 S2
CR1
M1
CR1
Connecting Pico
1. Connect S1 to Pico input terminal I1
2. Connect S2 to Pico input I2
3. Connect load M1 to Pico output Q1
Pico circuit diagram
I 1 2 3 4 5 6 7 8
MO
14:15
Q1234 STOP
1 ...5 ..8 ....
RE I P
MO 02:00 ST
.2 ..5 ..8 RUN
PROGRAM...
RUN
PROGRAM...
DELETE PROGOkOk
Ok
OkOk
or
Start Status Display
I1
I1
I1
Ok
Ok
Ok
Circuit Diagram Display

Insert Contact “I2”
Draw Connection Between Contact and Relay Coil
Choose Relay Coil “Q1”
I1
I1 I1
I1 I1
I1 I2
I1 I2
Ok
Ok
Ok
I1-I2
I1-I2---
I1-I2---
I1-I2
Alt
I1-I2---
I1-I2------{Q1
I1-I2------{Q1
I1-I2------{Q1Ok
Ok
Ok

Change Operating Mode
Test Circuit Diagram
I1-I1----{Q1 PROGRAM
PROGRAM...
PROGRAM...
DELETE PROG
RUN
RUN
PARAMETER
SET CLOCK..Ok
Esc
Esc
Pico now in RUN mode
PROGRAM...
STOP
PARAMETER
SET CLOCK...
PROGRAM...
PARAMETER
SET CLOCK...
STOP
I1-I2----{Q1
Ok
Power flow display

Operate Switch “S1” and “S2”
Return to Status Display with ESC
I1-I2----{Q1
I1-I2----{Q1
I1-I2----{Q1
“S1” on
“S2” on
Relay “Q1” picks up
I1-I2----{Q1 I 1 2 3 4 5 6 7 8
MO
13:34
Q1234 STOP
12............
RE I P
MO 02:00 ST
1.........RUN
PROGRAM...
RUN
PARAMETER
SET CLOCK..
Esc
Esc
OkOk
or
In the next example, a timing relay will be added to the circuit.
Status display is activated.
Choose STOP mode.

Function Relay Types
Timing Relay
Circuit Diagram
Symbol
Function Relay Type
Timing relay with on-delay, with and without random switching
Timing relay with off-delay, with and without random switching
Timing relay, single pulse
Timing relay, flashing
Counter relay, up/down counter
Time switch, weekday/time (only in Pico models with clock)
Analog comparator relay (only in Pico models with 24V dc)
X ?X
Trigger
Reset
on
on
on
t t t
Timing Relay with on delay, with and
without random switching
Timer Output

With random switching, the relay contact switches randomly at any
time up to the specified time value (shown shaded in figure).
?
Trigger
Reset
on
on
on
t t
Timing Relay with Off-Delay, with and without
Random Switching
Timer Output
t t
Timing Relay, Single Pulse
on
on
on
Output
Reset
Trigger

Parameter Display for Timing Relays
tt t
Timing Relay, Flashing
Trigger
Reset
Timer Output
Flash Frequency = 1/2 x setpoint
on
on
on
RES
T1
+
S 30.00
{ TRG
00.00Switch Function
Time Units
Trigger (Connected)
Reset (Not Connected)
Accumulated Time
Setpoint
Timer Number
Parameter Display
(Access Control)

Counter Relay
Parameter Display for Counter Relays
8
6
4
2
0
7
5
3
1
Count Input
Direction
Reset
Accumulated Value
(setpoint = 6)
Counter Output
on
on
on
on
C1 N +
AAAAASSetpoint
Accumulated Value
Counter Number Parameter Display
(Access Control)

Real Time Switch
Example: Real Time Switch 1 switches on Monday through Friday
between 6:30 and 9:00 and again between 17:00 and 22:30 (5:00 pm
and 10:30 pm).
Parameter Display for Real Time Switches
D MO-FR
06:30
09:00
ON
OFF
1 A +
D MO-FR
17:00
22:30
ON
OFF
1 B +
on
on
on
D SU
ON --:--
OFF --:--
1 A +
Week Day(s) from - to
On Time
Off Time
Real Time Switch Number
Parameter Display
(Access Control)

Analog Comparator
Available functions:
• I7 ≥ I8, I7 ≤I8
• I7 ≥ Setpoint, I7 ≤Setpoint
• I8 ≥ Setpoint, I8 ≤Setpoint
The analog comparator can compare voltages from 0V to 10V
(setpoints “0.0” to “10.0”).
Parameter Displays for Analog Comparators
Compare inputs I7 and I8.
TIP Analog signals of sensors typically fluctuate by
several millivolts. For stable switching the setpoints
should differ by at least 0.2V (switching hysteresis).
Do not use any relay with output energize or
impulse relay coil functions.
ANALOG
I7 8.0 V
A1
I8 4.2 V +
ANALOG
I7 8.0 V
A1
+3.2
Input I7
Input I8
Compare Function
Current Value
Analog Compare Number
Parameter Display
(Access Control)
Current Value
Input I7/I8
Compare Function
Setpoint
Current Value
Relay Number
Parameter Display
(Access Control)
Compare input “I7” to a setpoint.

Text Display
The Text Display is used to display eight freely definable messages on
the Pico screen. Each text block displays up to 48 characters from the
Pico display character set (ASCII + Pico special characters). If the Text
Display is enabled, the text entered via PicoSoft is displayed. If several
Text Displays are enabled, the next screen is displayed every 4
seconds. When Text Display D1 is enabled it stays displayed (fault
indication).
Press Ok to switch to the menus at any time.
Current values or parameters of function relays can be displayed in
lines 2 and 3.
Examples:
CAUTION!
PUMP 1
MOTOR
MALFUNCTION
THE TIME
IS
14:42
TIME RELAY 1
SETP99.00 S
QUANTITY
ACTV 0042
PCS
SETP0100
ACTV 42.00 S
Fault Signals Time with Text Display
Display Current Value and
Parameter of Timing RelayDisplay Counter Value

Example: Use a Function
Relay
Conventional Circuit
Select an Internal Marker Relay
Select Marker Contact and Connect to New Output Relay
I1-I2----{M1
M1-------TT1
T1-------{Q1
S1 S2
CR1
T1
M1
T1
CR1 10.0 sec
Pico switches M1 with
10 seconds delay.
Pico Circuit Diagram
I1-I2----{Q1 I1-I2----{Q1
I1-I2----{M1
I1-I2----{M1
Ok
Ok
Start Circuit from first example
Position cursor on “Q”
2 X
I1-I2----{M1 I1-I2----{M1
I1
I1-I2----{M1
M1------ {Q1
Ok
OkOk
Alt
2 X 2 X
3 X

Select Trigger Relay for Time
Insert Timing Relay Contact
Select Parameter Access
I1-I2----{M1 I1-I2----{M1
I1-I2----{M1
M1-------{Q1 M1-------TT1
M1-------TT1Ok
2 X
I1-I2----{M1 I1-I2----{M1
I1-I2----{M1
M1-------TT1
M1-------TT1
M1-------TT1
T1
I1
Ok
2 X
I1-I2----{M1
M1-------TT1
T1
X
S 00.00
{ TRG T1
RES +
Ok
2 X

Set “10 Seconds”
Connect Timing Relay Contact to New Output Relay
Change Pico to RUN to test the program. Test the circuit as shown for
the first example. To display and access the parameters for the timing
relay and change the time value in RUN mode, position the cursor in
the circuit diagram on the “T” of “T1” and press Ok.
T1 X
S 00.00
TRG
RES
Ok
+ T1 X
S 00.00
TRG
RES
+
T1 X
S 10.00
TRG
RES
+2 X
2 X back to circuit diagram
I1-I2----{M1 I1-I2----{M1
I1-I2----{M1
M1-------TT1
M1-------TT1
M1-------TT1
T1 T1
T1-------{Q1
Alt
Ok
3 X 3 X

Basic Circuits Significance of Logic Values
Negation (NOR)
Permanent Contact (Unconditional Rung)
Flip-Flop Output
Value Function
“0” Make contact open, break contact closed, relay coil not energized
“1” Make contact closed, break contact open, relay coil energized
I1 Q1
1 0
0 1
--- Q1
1 1
I1 State Q1 Q1
0 0 0
0 to
1
0 1
0 1 1
0 to
1
1 0
I1---------{Q1
-----------{Q1
I1--------- Q1

Series Connection (AND)
Parallel Connection (OR)
Exclusive OR Circuit (XOR)
I1 I2 I3 Q1 Q2
0 0 0 0 1
1 0 0 0 0
0 1 0 0 0
1 1 0 0 0
0 0 1 0 0
1 0 1 0 0
0 1 1 0 0
1 1 1 1 0
I1 I2 I3 Q1 Q2
0 0 0 0 1
1 0 0 1 1
0 1 0 1 1
1 1 0 1 1
0 0 1 1 1
1 0 1 1 1
0 1 1 1 1
1 1 1 1 0
I1 I2 Q1
0 0 0
1 0 1
0 1 1
1 1 0
I1-I2-I3-{Q1
I1-I2-I3-{Q2
I1--------{Q1
I2
I3
I1--------{Q2
I2
I3
I1-I2------{Q1
I1-I2

Motor Start/Stop Circuit
I1 I2 Contact
Q1
Coil
Q1
0 0 0 0
1 0 1 1
0 0 1 1
0 1 0 0
1 1 0 0
I1--I2-----{Q1
Q1
I1--------SQ1
I2--------RQ1
Alternatively:

Chapter 3
Pico Interface Socket
The Pico interface socket, which is beneath a protective cap, accepts
the optional Pico memory module, or connects Pico to a PC using the
optional PC interface cable and the PicoSoft software. This allows you
to copy the circuit diagrams to and from the PC and/or memory
module.
Memory Module
Memory modules are available as an optional accessory. Each memory
module can store a single Pico circuit diagram. Information stored on
the memory module is non-volatile (the information is not lost when
the power is turned off). The memory module can be used to make a
backup copy of a program and/or to transfer it to another Pico
controller.
Each memory module can hold one Pico program, up to 32K.
Each memory module stores:
• the circuit diagram
• all parameter settings of the circuit diagram
• system settings
1760-MM1 for all 1760-L12xxx
controllers
1760-MM2 for the 1760-L18xxx
controllers

3-2 Pico Interface Socket
Load or Store the Circuit Diagram
You can only transfer the program from Pico to the memory module
or vice versa in the STOP mode.
DEVICE - CARD: Transfer circuit diagram and
parameter settings from Pico to the memory
module.
CARD - DEVICE: Transfer circuit diagram and
parameter settings from the memory module to
Pico.
DELETE CARD: Delete the contents of the memory module.
Available Memory Modules
The following memory modules are available as Pico accessories.
Programs including all relevant data can be transferred from the
1760-MM2B memory module to the Series B Pico Controllers. The
existing 1760-MM1 and 1760-MM2 memory modules are Read-Only
when used with Series B Pico Controllers. The 1760-MM2B memory
module will not work with Series A Pico Controllers.
ATTENTION ELECTRICAL SHOCK HAZARD
The memory module and PC-cable socket are at the
potential of L2. There is a danger of electric shock if
L2 is not grounded. Do not make contact with
electrical components under the socket cover.
Pico Controller Memory Module
1760-L12xxx 1760-MM1 (Series A only)
1760-L18xxx 1760-MM2 (Series A only)
Series B Pico Controllers 1760-MM2B
DEVICE -> CARD
CARD -> DEVICE
DELETE CARD

Pico Interface Socket 3-3
PicoSoft
PicoSoft is an optional PC program that creates, stores, and manages
Pico circuit diagrams. It transfers the circuit diagrams from the PC to
Pico or vice versa using a special PC interface cable.
The PicoSoft software also includes extensive on-line Help.
To use the on-line Help, start PicoSoft and choose Contents in the
Help menu. Context sensitive help is also available. Choose a menu
item with the mouse and press F1 while keeping the mouse button
pressed.
Software Compatibility
If you are using programming software to program the Pico controller,
be sure that you are using the correct software version.
Find the Series Letter
The Series letter is printed on the side of the housing as shown.
Download the Software
You can download a free copy of PicoSoft version 6.1 from our web
site. Go to http://www.ab.com/picosoft6.
For PicoSoft Pro, please contact your Allen-Bradley Distributor or
Rockwell Automation representative.
ATTENTION
The PC interface cable is catalog number
1760-CBL-PM02 and is available as an accessory
item. Only use the Pico interface cable. Do not
attempt to make your own cable as this can cause
damage to the unit or present a shock hazard.
IMPORTANT PicoSoft version 6.1 or higher must be used to for the
Series B Pico controller. Earlier versions of PicoSoft
can only be used with Series A Pico controllers.

3-4 Pico Interface Socket

Appendix A
Specifications
Physical Specifications
Product Selection Table Controllers
Specification 1760-L12xxx 1760-L18xxx,
1760-L20xx
1760-IA12XOW6I,
1760-IA12XOW4I
1760-IB12XOB8
1760-IB12XOB8
1760-OW2
Weight 200g (7 oz) 300g (10.6 oz) 70g (0.154 lb)
Ambient temperature, (operation) -25°C to + 55°C (-18°F to 131°F)
Storage Temperature -40°C to +70°C (-40°F to +158°F)
Operating Humidity 5 to 95%, non-condensing
Emitted interference, interference
immunity
EN 55011, EN 55022, Class B
Standards and regulations
Approvals
EN 50178
UL, CSA, CE, C-Tick
Catalog Number Inputs Outputs Line Power Real Time
Clock
Display and
Keypad
Analog
1760-L12AWA 8 (120/240V ac) 4 (relay) 100 - 240V ac Yes Yes No
1760-L12AWA-NC(1) No Yes
1760-L12AWA-ND(2) Yes No
1760-L18AWA 12 (120/240V ac) 6 (relay) Yes Yes
1760-L18AWA-EX(3) Yes Yes
1760-L18AWA-EXND(2)(3) Yes No

A-2 Specifications
1760-L12BWB 8 (24V dc) 4 (relay) 24V dc Yes Yes 2 (0 to 10V dc)
1760-L12BWB-NC(1) No Yes
1760-L12BWB-ND(2) Yes No
1760-L12BBB 4 (MOSFET) Yes Yes 2 (0 to 10V dc)
1760-L12BBB-ND Yes No
1760-L12NWA 8 (24V ac) 4 (relay) 24V ac Yes Yes
1760-L12NWA-ND Yes No
1760-L12DWD 8 (12V dc) 12V dc Yes Yes
1760-L12DWD-ND Yes No
1760-L18BWB-EX(3) 12 (24V dc) 6 (relay) 24V dc Yes Yes
1760-L18BWB-EXND(2)(3) 6 (relay) Yes No 2 (0 to 10V dc)
1760-L20BBB-EX(3) 8 (MOSFET) Yes Yes 4 (0 to 10V dc)
1760-L20BBB-EXND(2)(3) 8 (MOSFET) Yes No
1760-L18DWD-EX(3) 12 (12V dc) 6 (relay) 12V dc Yes Yes
1760-L18DWD-EXND(2)(3) 6 (relay) 12V dc Yes No
1760-L18NWA-EX(3) 12 (24V ac) 6 (relay) 24V ac Yes Yes 4 (0 to 10V dc)
1760-L18NWA-EXND(2)(3) 12 (24V ac) 6 (relay) Yes No
(1) NC = no real time clock
(2) ND = no display
(3) EX = suitable for use with expansion modules
Catalog Number Inputs Outputs Line Power Real Time
Clock
Display and
Keypad
Analog

Specifications A-3
Expansion Modules
Accessories
Catalog Number Inputs Outputs Line Power
1760-IA12XOW6I 12 (100 - 240V ac) 6 (relay) 100 - 240V ac
1760-IA12XOW4IF 12 (100 - 240V ac) 4 (relay) 100 - 240V ac
1760-IB12XOW6I 12 (24V dc) 6 (relay) 24V dc
1760-IB12XOB8 12 (24V dc) 8 (transistor) 24V dc
1760-OW2 - 2 (relay) 24V dc
Catalog Number Description
1760-MM1 Memory Module for 12 I/O Pico Controller
1760-MM2 Memory Module for 18 I/O Pico Controller
1760-MM2B Memory Module for Pico Series B Controllers
1760-CBL-PM02 Programming Cable for Pico Controller
1760-RPLCONN Expansion Module Connector - included with expansion module. Catalog number listed is replacement part.
1760-SIM Input Simulator for 12 I/O 24V dc Pico Controller
1760-PICOSOFT Configuration Software for Pico Controllers.
D1760GR001BENP Pico Controllers Getting Results Manual, publication number 1760-GR001B-EN-P
D1760UM001BENP Pico Controllers User Manual, publication number 1760-UM001B-EN-P

A-4 Specifications
Dimensions Pico 1760-L12xxx
Pico 1760-L18xxx, 1760-L20xxx and Expansion Modules
10.75 50 1.97"
M4
35.75 1.41"
71.5 2.81"
903.54"
1024.02"
1104.33"
47.5 1.87"
56.5 2.22"
58 2.28"
451.77"
4.5 0.177"
0.423"
903.54"
1024.02"
1104.33"
M4
107.5 4.23"
75 2.96" 16.2516.25
47.5 1.87"
56.5 2.22"
58 2.28"
451.77"
4.5 0.177"
0.640"0.640"

Specifications A-5
Pico 1760-OW2 Expansion Module
Dimensions of the 1760-RM… Remote Processor modules
M4
7.5
35.5 1.4"
7.5 0.295"
0.295"
903.54"
1024.01"
1104.33"
176-RM… 1760-DU… and 176-RM…
75 2.95"
582.28"
36.2 1.43"22.5
0.89"
22.5
0.89"
30 1.18"
20.5
0.81"
27.5
1.08"
43.2 1.7"

A-6 Specifications

Index
A
accessories A-3
Allen-Bradley
contacting for assistance Preface-iii
support Preface-iii
Analog comparator 2-18
B
Basic circuit
Exclusive OR circuit (XOR) 2-24
Flip-flop output 2-23
Impulse relay 2-23
Motor start/stop circuit 2-25
Negation (NOR) 2-23
Permanent contact 2-23
Series connection (AND) 2-24
Break contact 2-5
Buttons 1-10
Use in circuit diagrams 2-1
C
Cable 3-3
Change operating mode 2-4
Circuit diagram
Access relay parameters 2-21
Choosing relay type 2-10
Displaying 2-9
Example 2-9, 2-20
Inserting contacts 2-9
Loading 3-2
Select marker relay 2-20
Storing 3-2
Symbols 1-14
Testing 2-11
Using a function relay 2-20
Using buttons in 2-1
Circuit diagram elements 2-5
Coil function 2-8
common techniques used in this manual
Preface-ii
contacting Allen-Bradley for assistance
Preface-iii
Contactor function 2-8
Contacts
Overview 2-5
Counter relay 2-16
Parameter display 2-16
Cursor display 1-13
D
dimensions
1760-L12 A-4
1760-L18 A-4
1760-L20 A-4
1760-OW2 A-5
1760-RM A-5
expansion modules A-4
E
Example
Basic circuits 2-23
Circuit diagram 2-9
Contacts and relays 2-9
Example of function relay 2-20
F
Function relays
Counter relay 2-16
Overview 2-13
Text display 2-19
Time switch 2-17
Timing relay 2-13
K
Keypad 1-10
L
Logic tables 2-23
M
Make contact 2-5
manuals, related Preface-ii
Memory Module (optional) 3-1
Menu guidance 1-11
Menu structure 1-15
Mounting 1-3
O
Operating buttons 1-10
P
Parameter display
Counter relay 2-16
For timing relays 2-15
Time switch 2-17

2 Index
physical specifications A-1
Overview of Pico 1-2
PicoSoft 3-3
Programming cable 3-3
publications, related Preface-ii
Purpose of this Manual Preface-ii
R
related publications Preface-ii
Relay types
Overview 2-6
S
selection table
controllers A-1
selections table
expansion modules A-3
Setting the time 2-3
Setting week day 2-3
Software 3-3
specifications
physical A-1
Startup behavior 2-4
Status display 1-12
Summer time 2-4
Symbols in circuit diagram 1-14
System menu 1-18
T
Terminals, inputs/outputs 1-4
Text display 2-19
Time switch 2-17
Timing relays 2-13
troubleshooting
contacting Allen-Bradley for assistance
Preface-iii
W
Winter time 2-4
Wiring diagrams
1760-L12AWA-NC, 1760-L12AWA, and
1760-L12AWA-ND 1-4
1760-L12AWA-xx and 1760-L12BWB-xx
1-5
1760-L12BWB and 1760-L12BWB-NC
1-4
1760-L18AWA 1-9
1760-OW2 1-9

Publication 1760-GR001C-EN-P - April 2005 2 PN 40072-085-01(3)
Supersedes Publication 1760-GR001B-EN-P - July 2001 Copyright © 2005 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
Rockwell Automation
Support
Rockwell Automation provides technical information on the web to assist you
in using our products. At http://support.rockwellautomation.com, you can
find technical manuals, a knowledge base of FAQs, technical and application
notes, sample code and links to software service packs, and a MySupport
feature that you can customize to make the best use of these tools.
For an additional level of technical phone support for installation,
configuration and troubleshooting, we offer TechConnect Support programs.
For more information, contact your local distributor or Rockwell Automation
representative, or visit http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24
hours of installation, please review the information that's contained in this
manual. You can also contact a special Customer Support number for initial
help in getting your module up and running:
New Product Satisfaction Return
Rockwell tests all of our products to ensure that they are fully operational
when shipped from the manufacturing facility. However, if your product is
not functioning and needs to be returned:
United States 1.440.646.3223
Monday – Friday, 8am – 5pm EST
Outside United
States
Please contact your local Rockwell Automation representative for any
technical support issues.
United States Contact your distributor. You must provide a Customer Support case
number (see phone number above to obtain one) to your distributor in
order to complete the return process.
Outside United
States
Please contact your local Rockwell Automation representative for
return procedure.

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